From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <ffmpeg-devel-bounces@ffmpeg.org>
Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100])
	by master.gitmailbox.com (Postfix) with ESMTP id 3999F48925
	for <ffmpegdev@gitmailbox.com>; Wed, 21 Feb 2024 13:11:43 +0000 (UTC)
Received: from [127.0.1.1] (localhost [127.0.0.1])
	by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 047EC68CF92;
	Wed, 21 Feb 2024 15:11:41 +0200 (EET)
Received: from glom.nmugroup.com (glom.nmugroup.com [193.183.80.6])
 by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id B45E568CE13
 for <ffmpeg-devel@ffmpeg.org>; Wed, 21 Feb 2024 15:11:34 +0200 (EET)
Received: from localhost (localhost [127.0.0.1])
 by glom.nmugroup.com (Postfix) with ESMTP id EB83754299D4
 for <ffmpeg-devel@ffmpeg.org>; Wed, 21 Feb 2024 14:11:33 +0100 (CET)
Received: from debian.lan (unknown [IPv6:2a00:66c0:a::72c])
 (Authenticated sender: git01)
 by glom.nmugroup.com (Postfix) with ESMTPSA id B68C15429519
 for <ffmpeg-devel@ffmpeg.org>; Wed, 21 Feb 2024 14:11:33 +0100 (CET)
Message-ID: <ee2afdf9ac3d013a236ce2e281379478c7cc38e9.camel@haerdin.se>
From: Tomas =?ISO-8859-1?Q?H=E4rdin?= <git@haerdin.se>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Date: Wed, 21 Feb 2024 14:11:32 +0100
In-Reply-To: <e4f6cc0d-948a-49ab-bf03-6a4191d85975@mediaarea.net>
References: <fa7a1a89-35fd-4a61-be42-b3bf25662031@mediaarea.net>
 <e4f6cc0d-948a-49ab-bf03-6a4191d85975@mediaarea.net>
User-Agent: Evolution 3.46.4-2 
MIME-Version: 1.0
Subject: Re: [FFmpeg-devel] [PATCH v2] avcodec/jpeg2000dec: support of 2
 fields in 1 AVPacket
X-BeenThere: ffmpeg-devel@ffmpeg.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: FFmpeg development discussions and patches <ffmpeg-devel.ffmpeg.org>
List-Unsubscribe: <https://ffmpeg.org/mailman/options/ffmpeg-devel>,
 <mailto:ffmpeg-devel-request@ffmpeg.org?subject=unsubscribe>
List-Archive: <https://ffmpeg.org/pipermail/ffmpeg-devel>
List-Post: <mailto:ffmpeg-devel@ffmpeg.org>
List-Help: <mailto:ffmpeg-devel-request@ffmpeg.org?subject=help>
List-Subscribe: <https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>,
 <mailto:ffmpeg-devel-request@ffmpeg.org?subject=subscribe>
Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: ffmpeg-devel-bounces@ffmpeg.org
Sender: "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org>
Archived-At: <https://master.gitmailbox.com/ffmpegdev/ee2afdf9ac3d013a236ce2e281379478c7cc38e9.camel@haerdin.se/>
List-Archive: <https://master.gitmailbox.com/ffmpegdev/>
List-Post: <mailto:ffmpegdev@gitmailbox.com>

This is still J2K specific rather than handling it properly for all
codecs all at once.

mxfdec can detect cases where there will be two separate fields in one
KLV, and the decoder(s) can if I'm not mistaken be instructed to decode
into an AVFrame with stride and offset set up for interlaced decoding.

It should be possible to have ffmpeg set up the necessary plumbing for
this.

/Tomas
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".